Ellipse Eccentricity

This example demonstrates the eccentricity of an ellipse, a key parameter that describes the flatness of an ellipse. By constructing the foci, semi-major axis, and semi-minor axis of the ellipse, the definition of eccentricity can be visually understood. GeoGebra commands such as Polygon and Midpoint are used for geometric construction. Suitable for high school mathematics education and learning.